potency

noun

1.
2.
capacity to produce strong physiological or chemical effects
inwork effectiveness strength
Derived from:
potent
3.
the inherent capacity for coming into being
Foremight potential potentiality
Derived from:
potential
4.
the state of being potent; a male's capacity to have sexual intercourse
potence
Antonym:
impotency
Derived from:
potent